Flight Reliability
DL 2642 · Delta Air Lines
Atlanta → Philadelphia (ATL–PHL)
72
Usually Fine
WanderNerd Reliability Score
- 76%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 2.8%
- Cancelled
- 3 min early
- Median arrival delay
Based on 361 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 2642 arrived on time 83% of the time on Tuesdays. On Sundays: 69%.
A bit behind the Delta Air Lines network.
DL 2642 arrived on time 76% of the time, versus 81% across the Delta Air Lines network.
Recent months have been rougher.
DL 2642 arrived on time 73% of the time over the last three months in the data, compared with 85% in the three months before that.
The breakdown
- Mon72%(50 flights)
- Tue83%(52 flights)
- Wed77%(52 flights)
- Thu72%(50 flights)
- Fri76%(45 flights)
- Sat80%(51 flights)
- Sun69%(51 flights)
- 6–9 PM—(2 flights)
- 9 PM–12 AM75%(349 flights)
81%
May
Jun 54% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 54% | 28 |
| July 2025 | 41% | 29 |
| August 2025 | 80% | 30 |
| September 2025 | 93% | 30 |
| October 2025 | 77% | 30 |
| November 2025 | 85% | 26 |
| December 2025 | 87% | 31 |
| January 2026 | 87% | 30 |
| February 2026 | 82% | 27 |
| March 2026 | 48% | 29 |
| April 2026 | 90% | 30 |
| May 2026 | 81% | 31 |
- Departures on time
- 75%
- Diverted
- 0%
- Flights flown
- 351
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 361 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.